 | | Details of the Bluetooth messaging protocol?
|
|
Can someone clarify the details of the Bluetooth messaging protocol? The documentation is quite confusing. (There is documentation for this in the Executable File Specificationn and in the Bluetooth develop kit document, as well as some in the NXT-G (...) (18 years ago, 13-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: Flash Write Cycles
|
|
(...) flash Are you sure of this John? It seems like the reset button would be for dire circumstances and would do something different than the firmware boot mode. The spec says this about SAMBA loading: "To enter SAM-BA Boot Recovery, the TST pin (...) (18 years ago, 13-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: Video from a Camera Cellphone into the NXT
|
|
In article <003701c6d6bc$fe18c6...kdesktop>, Dick Swan <dickswan@sbcglobal.net> writes (...) Okay. (...) I was lacking context, and I think you are looking for a simple answer that is not yet available. (...) Interesting, I have not met any of this (...) (18 years ago, 13-Sep-06, to lugnet.robotics.nxt)
|
| |
| | RE: Video from a Camera Cellphone into the NXT
|
|
Topic was formerly named "Gnah I'm afraid I've discovered a new bug". I've put a more relevant subject on it. This is in response to a reply from Tony Naggs. This is a good answer but not to the question I wanted answered. The currently available (...) (18 years ago, 12-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: Gnah I'm afraid I've discovered a new bug :(
|
|
In article <001501c6d613$4aece6...kdesktop>, Dick Swan <dickswan@sbcglobal.net> writes (...) There are quite a number of different software platforms, versions and variants for 'feature phones' and 'smart' phones. For Java a lot of APIs are (...) (18 years ago, 12-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: Flash Write Cycles
|
|
(...) [...] (...) According to what I have read, putting the AT91SAM7S processor in system recovery mode (i.e., by resetting it via the hardware reset button or by programmatically putting it into firmware boot mode) loads SAM-BA into flash and when (...) (18 years ago, 12-Sep-06, to lugnet.robotics.nxt)
|
| |
| | RE: Flash Write Cycles
|
|
(...) I guess it depends on which way they fail? Do they fail in locked mode or in unlocked mode? If, as would be good design, they fail to permanently locked, I'd guess nobody is interested in trying. What nobody has mentioned yet is the (...) (18 years ago, 12-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: Flash Write Cycles
|
|
(...) Whether you reset the brick or just run the download firmware routine in the LEGO Mindstorms NXT software or in RobotC or in NBC/BricxCC you've put the brick in SAMBA mode (clicking brick mode) and the lock bits have been cycled. But I have (...) (18 years ago, 12-Sep-06, to lugnet.robotics.nxt)
|
| |
| | RE: Gnah I'm afraid I've discovered a new bug :(
|
|
Anyone know if user applications (Java?) running on a camera phone have access to a recent frame buffer from the on-board camera? The objective of course is to perform image recognition on either the camera or the cellphone for the NXT to make (...) (18 years ago, 12-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: Gnah I'm afraid I've discovered a new bug :(
|
|
(...) Upgraded, and changed to fresh batteries twice, I sure hope it isn't but is feels very much like a hardware failure to me :( On the other hand I can report that I managed to get a low budget GPS to talk to my NXT. The bad news is that it works (...) (18 years ago, 12-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: Gnah I'm afraid I've discovered a new bug :(
|
|
(...) OK, that's just... weird. Are you using the straight-off-the-CD software, or have you upgraded with the "no clicking" patch? (18 years ago, 12-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Gnah I'm afraid I've discovered a new bug :(
|
|
My precious decided to die one night. When I tried to start it one morning it was totally dead, nothing could revive it. But since it was saturday and I had stuff to do I left it alone. Then several hours later it started to 'click' as described by (...) (18 years ago, 11-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: NXT in London
|
|
(...) Thanks, Tony, this information is great. I will check it out. Patrick (18 years ago, 11-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: Bluetooth Commands via Perl
|
|
Good luck. I did manage to get ruby-nxt working in windows, but I had to run it through cygwin to be able to compile the serial port module: (...) (18 years ago, 11-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: Flash Write Cycles
|
|
(...) As I understand it, the lock bits are only touched if SAMBA mode is entered, which is done when the reset button is pressed for more than about three seconds. At that point, the ARM erases the bottom two sectors and installs the SAMBA firmware (...) (18 years ago, 11-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: Flash Write Cycles
|
|
"Sivan Toledo" <stoledo@tau.ac.il> wrote in message news:J5DMMp.Bs5@lugnet.com... (...) firmware (...) called (...) True, you can't level the firmware - only file systems can be wear leveled. I understand that there has been discussion concerning (...) (18 years ago, 10-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: Bluetooth Commands via Perl
|
|
"Tony Buser" <tbuser@gmail.com> wrote in message news:b74cdea06090916...ail.com... (...) That was written for Linux, but hopefully, it will work on Windows as well. Dave (18 years ago, 10-Sep-06, to lugnet.robotics.nxt)
|
| |
| | RE: Flash Write Cycles
|
|
(...) Don't forget that the education market is also a large portion of the Mindstorms market. Lifetime for education is more line ten years?? And depending on environment, these could be heavy use applications. LEGO has also been very generous in (...) (18 years ago, 10-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: Flash Write Cycles
|
|
(...) One probable reason that the NXT does not do any wear leveling is that it executes instructions directly from flash (the instructions in the firmware itself), which is memory mapped. This requires that these instructions are contiguous, which (...) (18 years ago, 10-Sep-06, to lugnet.robotics.nxt)
|
| |
| | Re: Flash Write Cycles
|
|
In article <J5C97r.BBF@lugnet.com>, David <dww.robotics@gmail.com> writes (...) This is the guaranteed minimum number, with higher voltages and at higher temperatures than you are likely to use the NXT at. FLASH memory is a pretty mature technology (...) (18 years ago, 10-Sep-06, to lugnet.robotics.nxt)
|
